Shaking Table Test on Suspended Cable Tray in High-Rise Buildings
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1.State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;2.College of Civil Engineering, Tongji University, Shanghai 200092, China;3.Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology, Tokyo 152-8550, Japan;4.Faculty of Science and Engineering, Meijo University, Nagoya 468-0073, Japan

Clc Number:

TU852;TU393.2

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    Abstract:

    A cable tray is a typical non-structural component in high-rise buildings. In order to study its seismic performance, two groups of simulated earthquake shaking table tests were conducted using full-scale models. The first group test aimed at cable trays equipped with three different types of seismic supports; the second group test aimed at an L-shaped three-dimensional cable tray with horizontal and vertical bend-way sections. Several groups of ground motions were input to the cable tray suspended on the steel platform. The damage, dynamic characteristics, displacement response, and acceleration response of the cable tray were described and analyzed. The test result shows that the seismic damage to the suspended cable tray is mainly concentrated at the joints of the main and sub beam of the tray component, and the failure of the joints causes the sub beam to fall. The displacement response and damage of cable trays with different types of seismic supports are significantly different, while the acceleration response is less different. The seismic performance of rod-type seismic support is better than that of section-steel-type seismic support. Moreover, the seismic performance of reinforced seismic support is the best. Compared with the straight section of the cable tray, the seismic damage to the bending section is smaller. Increasing the lateral stiffness of the seismic support and the strength of the main and sub beam joints of the tray component can improve the seismic performance of the cable tray.

    Reference
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WU Chen, KASAI Kazuhiko, JIANG Huanjun, MATSUDA Kazuhiro. Shaking Table Test on Suspended Cable Tray in High-Rise Buildings[J].同济大学学报(自然科学版),2023,51(12):1868~1878

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History
  • Received:January 13,2023
  • Online: December 29,2023
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